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Basler BE1-32 Instruction Manual

Directional power relays
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INSTRUCTION MANUAL
FOR
DIRECTIONAL POWER RELAYS
BE1-32 and BE1-32O/U
Publication: 9171100990
Revision: R
09/07

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Summary of Contents for Basler BE1-32

  • Page 1 INSTRUCTION MANUAL DIRECTIONAL POWER RELAYS BE1-32 and BE1-32O/U Publication: 9171100990 Revision: R 09/07...
  • Page 3 INTRODUCTION This instruction manual provides information about the operation and installation of the BE1-32R and BE1-32O/U Directional Power Relays. To accomplish this, the following information is provided: • General Information and Specifications • Controls and Indicators • Functional Description • Installation •...
  • Page 4 September 2007 CONFIDENTIAL INFORMATION of Basler Electric, Highland Illinois, USA. It is loaned for confidential use, subject to return on request, and with the mutual understanding that it will not be used in any manner detrimental to the interest of Basler Electric.
  • Page 5 REVISION HISTORY The following information provides a historical summary of the changes made to the BE1-32R and BE1- 32O/U instruction manual (9171100990). Revisions are listed in reverse chronological order. Manual Revision and Date Change • R, 09/07 Added manual part number and revision to all footers. •...
  • Page 6 Manual Revision and Date Change • H, 06/98 Deleted references to Service Manual 9171100620. • Changed power supply voltage and burden data listed in Section 1. • Added information to instantaneous response time specification in Section 1. • Added Figure 1-13 and associated paragraphs describing the underpower element.
  • Page 7 CONTENTS SECTION 1 • GENERAL INFORMATION ....................1-1 SECTION 2 • CONTROLS AND INDICATORS ..................2-1 SECTION 3 • FUNCTIONAL DESCRIPTION ................... 3-1 SECTION 4 • INSTALLATION ........................4-1 SECTION 5 • TESTING ..........................5-1 9171100990 Rev R BE1-32R, BE1-32O/U Introduction...
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  • Page 9: Table Of Contents

    SECTION 1 • GENERAL INFORMATION TABLE OF CONTENTS SECTION 1 • GENERAL INFORMATION ....................1-1 INTRODUCTION............................ 1-1 APPLICATION ............................1-1 Example 1: Anti-Motoring ........................1-1 Example 2: Co-Generator Control...................... 1-2 Example 3: Generator Overload ......................1-3 Example 4: Intertie ..........................1-3 Example 5: Delayed Electrical Trip ....................
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  • Page 11: Example 1: Anti-Motoring

    An open breaker creates an overload on a local generation facility. • Loss of excitation can be determined by var sensing. NOTE This product is not recommended for power factors below 0.10. Contact Basler Electric for recommended products. Example 1: Anti-Motoring When a synchronous generator, operating in parallel...

  • Page 12: Example 2: Co-Generator Control

    2 to 10 seconds, but may be set as high as 30 seconds or more. An operating condition with very low power levels at a low power factor may not be detected by this product. For very low power levels at power factors of 0.10 or lower, contact Basler Electric for recommended products.

  • Page 13: Example 3: Generator Overload

    In the second configuration, the start signal is generated in the same manner as that of Figure 1-2. The start signal setpoint may be set above the import power setting. The stop signal will require an underpower relay on the generator output. This system is illustrated in Figure 1-3. Example 3: Generator Overload When excessive load has been connected to a generating system, the directional power relay can initiate corrective action.

  • Page 14: Example 5: Delayed Electrical Trip

    Example 5: Delayed Electrical Trip On large steam units, where overspeeding is a prime concern, a reverse power relay can be used to supervise electrical tripping (field and main ac breakers) for selected relay operations (e.g., non-electrical trips, loss of field relay), as shown in Figure 1-5. The reverse power relay delays breaker tripping until trapped steam has been removed from the piping.

  • Page 15: Figure 1-7. Power Factor, First And Second Quadrants

    Figure 1-7. Power Factor, First and Second Quadrants When breaker N opens, operation transfers to the third or fourth quadrants (see Figure 1-8). If transformer exciting current predominates, operation falls in the third quadrant. If cable charging current pre-dominates, operation falls in the fourth quadrant. In either case, the transformer losses must be supplied.

  • Page 16: Example 7: Reactive Power (Vars) Detection

    Example 7: Reactive Power (Vars) Detection This example illustrates a directional power relay configured to distinguish between real and reactive power. Real power (watts) is supplied to the synchronous generator by the prime mover, and reactive power (vars) is supplied to the field by the exciter. When field excitation is significantly reduced and the connected system can provide sufficient reactive power to maintain the generator terminal voltage, reactive power flows into the machine and causes it to operate as an induction generator with essentially the same kW output.

  • Page 17: Model And Style Number

    Model numbers BE1- 32R or BE1-32O/U designate the relay as a Basler Electric, Class 100, Directional Power Relay. The model number and style number describe the options included in a specific device, and appear on the front panel, draw-out cradle, and inside the case assembly.

  • Page 18: Style Number Example

    Figure 1-12. Style Number Identification Chart Style Number Example If a BE1-32R Directional Overpower Relay is ordered with a style number of A1GA1PA0N1F, the relay would have the following features. A ------- Single-phase current sensing and line-to-neutral voltage sensing 1-------- 120 Vac, 0.5 to 20 W sensing input range G ------- One output relay with normally closed (N.C.) contacts A1------ Instantaneous timing characteristics with one setpoint P ------- 125 Vdc/120 Vac power supply...

  • Page 19: Specifications

    SPECIFICATIONS Current Sensing BE1-32R and -32 O/U Directional Power Relays are designed for use with five amperes nominal (50/60 HZ) system current transformer secondaries. The input sensing current transformers within the relay are rated as follows. Sensing Input Ranges 1, 4, and 7 ∗ Continuous Rating: 1 Minute Rating: 10 A...

  • Page 20: Output Circuits

    ±2 percent of front panel setting or 0.15 W, whichever is greater 0.5<PF<1 ±5 percent of front panel setting or 0.15 W, whichever is greater This product is not recommended for power factors below 0.10. Contact Basler Electric for recommended products. Dropout Accuracy 95% of actual pickup.

  • Page 21: Figure 1-13. Overpower Instantaneous Response Time

    Inverse Time: Available for the overpower function only. Adjustment of the Time Dial thumbwheel selects curves from 01 to 99 in increments of 01. A setting of 00 enables instantaneous timing. Refer to Figure 1-15 for examples of the overpower inverse time characteristic curves.

  • Page 22: Figure 1-15. Overpower Inverse Time Characteristic Curves

    Figure 1-15. Overpower Inverse Time Characteristic Curves 1-12 BE1-32R, BE1-32O/U General Information 9171100990 Rev R...

  • Page 23: Timing-Continued

    Timing—continued Accuracy Instantaneous: <80 ms (60 Hz) or <100 ms, (50 Hz) up to a real power magnitude of 2 times the setting Definite: ±5 percent or 50 ms, whichever is greater Inverse: +5 percent or 50 ms, whichever is greater NOTE: Operating time is repeatable within 2% or 50 ms (whichever is greater) for any combination of time dial and power settings within the specified operating temperature range.

  • Page 24: Ul Recognition

    Radio Frequency Interference Maintains proper operation when tested for interference in accordance with IEEE C37.90.2-1987, Standard Withstand Capability of Relay Systems to Radiated Electromagnetic Interference from Transceivers. Shock In standardized testing, the relay has withstood 15 G in each of three mutually perpendicular planes without structural damage or degradation of performance.

  • Page 25: Section 2 • Controls And Indicators

    SECTION 2 • CONTROLS AND INDICATORS INTRODUCTION All BE1-32R and BE1-32O/U controls and indicators are located on the front panel. The controls and indicators are shown in Figure 2-1 and described in Table 2-1. Figure 2-1 illustrates a relay with the maximum number of controls and indicators.
  • Page 26 Table 2-1. Control and Indicator Descriptions Locator Description Range Select Switch. This two-position switch is used in conjunction with the Overpower Tap Selector (locator C) and selects either the high or low overpower pickup range. Overpower Time Delay Control. These thumbwheel switches select the overpower trip time delay.

  • Page 27: Figures

    SECTION 3 • FUNCTIONAL DESCRIPTION TABLE OF CONTENTS SECTION 3 • FUNCTIONAL DESCRIPTION ................... 3-1 INTRODUCTION............................ 3-1 Current Sensing ..........................3-1 Phase Rotation Sensitivity........................3-1 Sensing Input Types........................... 3-3 KW Transducer........................... 3-5 Comparator Circuits ........................... 3-5 Pickup..............................3-5 Timing..............................3-6 Outputs ...............................
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  • Page 29: Section 3 • Functional Description

    CT burden calculations and CT performance during fault conditions. The high burden can be easily accounted for in normal operation and CT selection. However, the larger concern is what occurs during fault conditions and how other relays on the CT string will be affected by the BE1-32 burden. Phase Rotation Sensitivity Relays that use phase current and phase-to-phase voltages to determine direction are sensitive to phase rotation.
  • Page 30 Type E Sensing Relays with type E sensing (two elements) monitor two phase-to-phase voltages (the third phase is used as a reference) and two phases of current to determine directional power flow. This is sometimes referred to as the two-wattmeter method for power flow measurement. Figure 3-2 shows the phasor representation for ABC rotation.

  • Page 31: Sensing Input Types

    Figure 3-5. Type B or V Sensing with ACB Rotation Sensing Input Types The following paragraphs describe the current and voltage sensing types available in BE1-32R and BE1- 32O/U relays. Type A Sensing: Single-Phase Current and Single-Phase Voltage In three-phase, four-wire circuits, relays with type A sensing calculate the power flowing in the tripping direction by monitoring line-to-neutral voltage and a single phase of current.
  • Page 32 Figure 3-7. Type B/Type V Sensing Figure 3-8. Type C Sensing Type D Sensing: Three-Phase Current and Three-Phase Voltage In three-phase, four-wire circuits, relays with type D sensing calculate the power flowing in the tripping direction by monitoring three line-to-neutral voltages and three phases of current. This sensing type can also be applied on a three-phase, three-wire system using phase-to-ground voltages.

  • Page 33: Kw Transducer

    Figure 3-9. Type D Sensing Type E Sensing: Two-Phase Current and Three-Phase Voltage In three-phase, three-wire circuits, relays with type E sensing calculate the power flowing in the tripping direction by monitoring the three line-to-line voltages and two phases of currents. The relay measures actual power under balanced or unbalanced conditions.

  • Page 34: Timing

    This product is not recommended for power factors below 0.10. Contact Basler Electric for recommended products. Figure 3-10. Type E Sensing Timing BE1-32R and BE1-32O/U timing is defined by the style number and can be instantaneous, definite time- delayed, or inverse time-delayed.

  • Page 35: Outputs

    200 milliamperes of current flowing in the trip circuit. NOTE Prior to September 2007, BE1-32 and BE1-32O/U target indicators consisted of magnetically-latched, disc indicators. These mechanically latched target indicators have been replaced by the electronically latched LED targets in use today.
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  • Page 37: Section 4 • Installation

    SECTION 4 • INSTALLATION TABLE OF CONTENTS SECTION 4 • INSTALLATION ........................4-1 INTRODUCTION............................ 4-1 RELAY OPERATING GUIDELINES AND PRECAUTIONS ..............4-1 MOUNTING............................4-1 Panel Drilling Diagrams and Outline Drawings .................. 4-1 CONNECTIONS ..........................4-17 Notes for Figures 4-21 and 4-22 ...................... 4-22 MAINTENANCE ...........................
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  • Page 39 Inspect the relay for shipping damage. If there is evidence of damage, file a claim with the carrier and notify your sales representative or Basler Electric. If the relay will not be installed immediately, store it in its original shipping carton in a moisture- and dust- free environment.
  • Page 40 Figure 4-1. Panel Drilling Diagram, S1 Case, Semi-Flush Mounting BE1-32R, BE1-32O/U Installation 9171100990 Rev R...
  • Page 41 Figure 4-2. Panel Drilling Diagram, S1 Case, Projection Mounting, Single-Ended 9171100990 Rev R BE1-32R, BE1-32O/U Installation...
  • Page 42 Figure 4-3. Panel Drilling Diagram, S1 Case, Projection Mounting, Double-Ended BE1-32R, BE1-32O/U Installation 9171100990 Rev R...
  • Page 43 Figure 4-4. Panel Drilling Diagram, M1 Case, Semi-Flush Mounting 9171100990 Rev R BE1-32R, BE1-32O/U Installation...
  • Page 44 Figure 4-5. Panel Drilling Diagram, M1 Case, Projection Mounting BE1-32R, BE1-32O/U Installation 9171100990 Rev R...
  • Page 45 Figure 4-6. Case Dimensions, S1 Case, Projection Mounting, Rear View (Semi-flush mounting case has identical dimensions.) 9171100990 Rev R BE1-32R, BE1-32O/U Installation...
  • Page 46 Figure 4-7. Case Dimensions, M1 Case, Projection Mounting, Rear View (Semi-flush mounting case has identical dimensions.) BE1-32R, BE1-32O/U Installation 9171100990 Rev R...
  • Page 47 D2856-23 06-15-99 Figure 4-8. Case Dimensions, S1 Case, Semi-Flush Mounting, Single-Ended, Side View 9171100990 Rev R BE1-32R, BE1-32O/U Installation...
  • Page 48 D2881-15 04-17-00 Figure 4-9. Case Dimensions, S1 Case, Semi-Flush Mounting, Double-Ended, Side View 4-10 BE1-32R, BE1-32O/U Installation 9171100990 Rev R...
  • Page 49 CASE DETAIL A-A SHOWING THE ADDITION OF WASHERS OVER THE BOSS TO TIGHTEN THE RELAY AGAINST THE PANEL. P0002-17 01-30-01 Figure 4-10. Case Dimensions, S1 Case, Projection Mounting, Single-Ended, Side View 9171100990 Rev R BE1-32R, BE1-32O/U Installation 4-11...
  • Page 50 Figure 4-11. Case Dimensions, S1 Case, Projection Mounting, Double-Ended, Side View 4-12 BE1-32R, BE1-32O/U Installation 9171100990 Rev R...
  • Page 51 P0002-15 09-07-00 Figure 4-12. Case Dimensions, M1 Case, Semi-Flush Mounting, Side View 9171100990 Rev R BE1-32R, BE1-32O/U Installation 4-13...
  • Page 52 PANEL CASE DETAIL A-A SHOWING THE ADDITION OF WASHERS OVER THE BOSS TO TIGHTEN THE RELAY AGAINST THE PANEL. P0002-16 09-07-00 Figure 4-13. Case Dimensions, M1 Case, Projection Mounting, Side View 4-14 BE1-32R, BE1-32O/U Installation 9171100990 Rev R...
  • Page 53 P0002-12 01-31-01 Figure 4-14. Cover Dimensions, S1 Case, Front View 9171100990 Rev R BE1-32R, BE1-32O/U Installation 4-15...
  • Page 54 P0002-14 08-10-01 Figure 4-15. Cover Dimensions, M1 Case, Front View 4-16 BE1-32R, BE1-32O/U Installation 9171100990 Rev R...
  • Page 55 CONNECTIONS Be sure to check the model and style number of a relay before connecting and energizing the relay. Incorrect wiring may result in damage to the relay. Except where noted, connections should be made with wire no smaller than 14 AWG. Relay connections are shown in the following illustrations.
  • Page 56 Figure 4-17. Internal Connections, Sensing Type A, B, or V 4-18 BE1-32R, BE1-32O/U Installation 9171100990 Rev R...
  • Page 57 Figure 4-18. Internal Connections, Sensing Type C 9171100990 Rev R BE1-32R, BE1-32O/U Installation 4-19...
  • Page 58 Figure 4-19. Internal Connections, Sensing Type D 4-20 BE1-32R, BE1-32O/U Installation 9171100990 Rev R...
  • Page 59 Figure 4-20. Internal Connections, Sensing Type E 9171100990 Rev R BE1-32R, BE1-32O/U Installation 4-21...
  • Page 60 Figure 4-21. BE1-32R Typical External Connections Figure 4-22. BE1-32O/U Typical External Connections Notes for Figures 4-21 and 4-22 1. The overpower and underpower output contact configuration is determined by the relay style number and may be NO or NC. 2. The auxiliary output contact configuration is determined by the relay style number and may be NO, NC, or SPDT.
  • Page 61 Figure 4-23. Type A Sensing Connections Figure 4-24.Type B or V Sensing Connections with ABC Rotation 9171100990 Rev R BE1-32R, BE1-32O/U Installation 4-23...
  • Page 62 Figure 4-25. Type B or V Sensing Connections with ACB Rotation Figure 4-26. Type C Sensing Connections 4-24 BE1-32R, BE1-32O/U Installation 9171100990 Rev R...
  • Page 63 Figure 4-27. Type D Sensing Connections 9171100990 Rev R BE1-32R, BE1-32O/U Installation 4-25...
  • Page 64 Figure 4-28. Type E Sensing Connections with ABC Rotation 4-26 BE1-32R, BE1-32O/U Installation 9171100990 Rev R...
  • Page 65 Figure 4-29. Type E Sensing Connections with ACB Rotation 9171100990 Rev R BE1-32R, BE1-32O/U Installation 4-27...
  • Page 66 Maintenance Accessories Test Plug Test plugs (Basler P/N 10095) enable relay testing without removing the relay from the case. Test plugs are simply substituted for the connection plugs. This provides access to the external stud connections as well as the internal circuitry.

  • Page 67: Section 5 • Testing

    SECTION 5 • TESTING TABLE OF CONTENTS SECTION 5 • TESTING ..........................5-1 INTRODUCTION............................ 5-1 TEST PROCEDURES ........................... 5-1 Connections............................5-1 Overpower Pickup and Dropout (Unity Power Factor) ............... 5-1 Underpower Pickup and Dropout (Unity Power Factor) ..............5-1 Instantaneous Time (Overpower)....................... 5-2 Definite Time (Overpower) .........................
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  • Page 69 SECTION 5 • TESTING INTRODUCTION The following procedures verify proper relay operation and calibration. Results obtained from these procedures may not fall within specified tolerances. When evaluating results, consider three prominent factors: • Test equipment accuracy • Testing method (e.g., timing start signal) •...
  • Page 70 3. Apply nominal sensing input voltage to the appropriate case terminals. A single voltage source may be connected to paralleled relay sensing voltage inputs to simulate a three-phase source. 4. Apply a current source to the relay current sensing inputs and increase the current level until it is greater than the underpower pickup point.
  • Page 71 4. Apply nominal sensing input voltage to the appropriate case terminals. A single voltage source may be connected to paralleled relay sensing voltage inputs to simulate a three-phase source. 5. Apply a current source to the relay current sensing inputs and increase the current level until it is greater than the underpower pickup point.
  • Page 72 NOTES Type A sensing is calibrated in single-phase watts. If a wattmeter is not available, use the following equation to determine the pickup current that corresponds to the desired overpower or underpower pickup in watts. Adjust the relay test set to produce this current value. ×...
  • Page 73 NOTES Types B and V (30° phase shift) sensing are calibrated in single-phase watts. If a wattmeter is not available, use the following equation to determine the pickup current that corresponds to the desired overpower or underpower pickup in watts. Adjust the relay test set to produce this current value. ×...
  • Page 74 NOTES Type C (Scott or T-connected) sensing is calibrated in three-phase watts. If a wattmeter is not available, us the following equation to determine the pickup current that corresponds to the desired overpower or underpower pickup in watts. Adjust the relay test set to produce this current value. ×...
  • Page 75 NOTES Type D sensing is calibrated in three-phase watts using single-phase sensing inputs. Using the test connections shown, the relay may be calibrated in true three-phase power using one-third of the pickup current corresponding to the desired overpower or underpower pickup in watts. Adjust the relay test set to produce this current value from the following equation.
  • Page 76 NOTES Type E sensing is calibrated in three-phase watts using single-phase sensing inputs. Using the test connections shown, the relay may be calibrated in true three-phase power using one-half the pickup current that corresponds to the desired overpower or underpower pickup in watts. Adjust the relay test set to produce this current value from the following equation.
  • Page 77 ROUTE 143, BOX 269 HIGHLAND, IL 62249 USA http://www.basler.com, info@basler.com PHONE +1 618-654-2341 FAX +1 618-654-2351...

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